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How to use the printing doctor blade correctly?

Update: 2021-04-16

 After installing the doctor blade on the printing machine, do not let the doctor blade rub against the mesh roller that has not been moistened with ink before the formal printing. Otherwise, the scraper and mesh roller are likely to be completely damaged. The doctor blade pressure of the doctor blade should be adjusted from small to large. Do not use a large doctor blade pressure at the beginning, and don’t pay too much attention to the so-called standard doctor blade pressure. As long as the doctor blade effect is clean, there is no need to increase the doctor blade pressure. It is easy for an experienced printing press operator to judge.

For a thinner doctor blade, in order to achieve a good doctor blade effect, the doctor blade pressure can be slightly lower. For a closed scraper system, the same material should be used for the upper and lower scrapers to ensure uniform pressure.
When the pressure of the doctor blade is too high, the doctor blade will easily deviate from the initial doctor blade position, the angle of the doctor blade is reduced, and when the area of the doctor blade is increased, the back of the doctor blade rather than the opening of the doctor blade is actually played, resulting in acceleration The abrasion of the anilox roller and the scraper makes the scraper effect unsatisfactory.
 

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